WordNet (r) 3.0 (2006):

pass out
    v 1: pass out from weakness, physical or emotional distress due
         to a loss of blood supply to the brain [syn: faint,
         conk, swoon, pass out]
    2: give to several people; "The teacher handed out the exams"
       [syn: distribute, give out, hand out, pass out]
    3: lose consciousness due to a sudden trauma, for example [syn:
       zonk out, pass out, black out]

Moby Thesaurus II by Grady Ward, 1.0:

108 Moby Thesaurus words for "pass out":
   be consumed, be drunk, be gone, be intoxicated, black out, bow out,
   buy it, cash in, cease, cease to be, cease to exist, check in,
   check out, circulate, come across with, crap out, croak, decease,
   deliver, deliver over, dematerialize, demise, depart, die,
   die away, die out, disappear, dispel, disperse, dissipate,
   dissolve, distribute, do a fade-out, drop, drop off, dwindle,
   egress, erode, evanesce, evaporate, exit, expire, fade, fade away,
   fade out, faint, fall senseless, flee, fly, fork over, forward,
   get out, give in, give out, give over, go, go away, go out,
   go west, gray out, hand, hand in, hand out, hand over, have it,
   hide, keel over, kick in, kick off, kick the bucket, knock off,
   leave no trace, leave the scene, make an exit, march out, melt,
   melt away, pass, pass away, pass over, peg out, perish, pipe off,
   pop off, reach, reel, render, resign, retire from sight, run out,
   see double, shove off, sink, sink away, stagger, step off, succumb,
   suffer an eclipse, surrender, swoon, transfer, turn over, vanish,
   vanish from sight, walk out, waste, waste away, wear away